Siddharth-starrer 'Gruham', a horror-thriller, is a Tamil-Telugu-Hindi film starring Siddharth in the main role.

Also starring Andrea Jeremiah in an important role, 'Gruham' also has Atul Kulkarni in a key role. Produced by Sid (who has co-written it with its director) on Etaki Entertainment, it is directed by Milind Rau, a Mani Ratnam protege. Girish is the music director. Dialogues are by Kiran Kumar. The cinematography is by Shreyaas Krishna. Lawrence Kishore is the editor. Siva Shankar is the art director. R Sakthi Saravanan is the stunt director.

From 'Focus on the darkness' to a 'Watch this at your own risk' warning, the pre-release promos are raising the expectations. Importantly, the special effects are authentic.